combinedrangexyplottests.java

这是一个segy数据显示程序

/* ===========================================================
 * JFreeChart : a free chart library for the Java(tm) platform
 * ===========================================================
 *
 * (C) Copyright 2000-2004, by Object Refinery Limited and Contributors.
 *
 * Project Info:  http://www.jfree.org/jfreechart/index.html
 *
 * This library is free software; you can redistribute it and/or modify it under the terms
 * of the GNU Lesser General Public License as published by the Free Software Foundation;
 * either version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
 * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 * See the GNU Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License along with this
 * library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
 * Boston, MA 02111-1307, USA.
 *
 * [Java is a trademark or registered trademark of Sun Microsystems, Inc. 
 * in the United States and other countries.]
 *
 * -----------------------------
 * CombinedRangeXYPlotTests.java
 * -----------------------------
 * (C) Copyright 2003, 2004, by Object Refinery Limited and Contributors.
 *
 * Original Author:  David Gilbert (for Object Refinery Limited);
 * Contributor(s):   -;
 *
 * $Id: CombinedRangeXYPlotTests.java,v 1.6 2004/04/19 10:01:45 mungady Exp $
 *
 * Changes
 * -------
 * 21-Aug-2003 : Version 1 (DG);
 *
 */

package org.jfree.chart.plot.junit;

import java.awt.Font;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.ObjectInput;
import java.io.ObjectInputStream;
import java.io.ObjectOutput;
import java.io.ObjectOutputStream;

import junit.framework.Test;
import junit.framework.TestCase;
import junit.framework.TestSuite;

import org.jfree.chart.annotations.XYTextAnnotation;
import org.jfree.chart.axis.AxisLocation;
import org.jfree.chart.axis.NumberAxis;
import org.jfree.chart.plot.CombinedRangeXYPlot;
import org.jfree.chart.plot.PlotOrientation;
import org.jfree.chart.plot.XYPlot;
import org.jfree.chart.renderer.StandardXYItemRenderer;
import org.jfree.chart.renderer.XYItemRenderer;
import org.jfree.data.XYDataset;
import org.jfree.data.XYSeries;
import org.jfree.data.XYSeriesCollection;

/**
 * Tests for the {@link CombinedRangeXYPlot} class.
 *
 */
public class CombinedRangeXYPlotTests extends TestCase {

    /**
     * Returns the tests as a test suite.
     *
     * @return the test suite.
     */
    public static Test suite() {
        return new TestSuite(CombinedRangeXYPlotTests.class);
    }

    /**
     * Constructs a new set of tests.
     *
     * @param  name the name of the tests.
     */
    public CombinedRangeXYPlotTests(String name) {
        super(name);
    }

    /**
     * Problem the equals method.
     */
    public void testEquals() {
        
        CombinedRangeXYPlot plot1 = createPlot();
        CombinedRangeXYPlot plot2 = createPlot();
        assertTrue(plot1.equals(plot2));    
        
    }

    /**
     * Confirm that cloning works.
     */
    public void testCloning() {
        CombinedRangeXYPlot plot1 = createPlot();        
        CombinedRangeXYPlot plot2 = null;
        try {
            plot2 = (CombinedRangeXYPlot) plot1.clone();
        }
        catch (CloneNotSupportedException e) {
            System.err.println("CombinedRangeXYPlotTests.testCloning: failed to clone.");
        }
        assertTrue(plot1 != plot2);
        assertTrue(plot1.getClass() == plot2.getClass());
        assertTrue(plot1.equals(plot2));
    }

    /**
     * Serialize an instance, restore it, and check for equality.
     */
    public void testSerialization() {

        CombinedRangeXYPlot plot1 = createPlot();
        CombinedRangeXYPlot plot2 = null;

        try {
            ByteArrayOutputStream buffer = new ByteArrayOutputStream();
            ObjectOutput out = new ObjectOutputStream(buffer);
            out.writeObject(plot1);
            out.close();

            ObjectInput in = new ObjectInputStream(new ByteArrayInputStream(buffer.toByteArray()));
            plot2 = (CombinedRangeXYPlot) in.readObject();
            in.close();
        }
        catch (Exception e) {
            e.printStackTrace();
        }
        assertEquals(plot1, plot2);

    }
    
    /**
     * Creates a sample dataset.
     *
     * @return Series 1.
     */
    private XYDataset createDataset1() {

        // create dataset 1...
        XYSeries series1 = new XYSeries("Series 1");
        series1.add(10.0, 12353.3);
        series1.add(20.0, 13734.4);
        series1.add(30.0, 14525.3);
        series1.add(40.0, 13984.3);
        series1.add(50.0, 12999.4);
        series1.add(60.0, 14274.3);
        series1.add(70.0, 15943.5);
        series1.add(80.0, 14845.3);
        series1.add(90.0, 14645.4);
        series1.add(100.0, 16234.6);
        series1.add(110.0, 17232.3);
        series1.add(120.0, 14232.2);
        series1.add(130.0, 13102.2);
        series1.add(140.0, 14230.2);
        series1.add(150.0, 11235.2);

        XYSeries series2 = new XYSeries("Series 2");
        series2.add(10.0, 15000.3);
        series2.add(20.0, 11000.4);
        series2.add(30.0, 17000.3);
        series2.add(40.0, 15000.3);
        series2.add(50.0, 14000.4);
        series2.add(60.0, 12000.3);
        series2.add(70.0, 11000.5);
        series2.add(80.0, 12000.3);
        series2.add(90.0, 13000.4);
        series2.add(100.0, 12000.6);
        series2.add(110.0, 13000.3);
        series2.add(120.0, 17000.2);
        series2.add(130.0, 18000.2);
        series2.add(140.0, 16000.2);
        series2.add(150.0, 17000.2);

        XYSeriesCollection collection = new XYSeriesCollection();
        collection.addSeries(series1);
        collection.addSeries(series2);
        return collection;

    }

    /**
     * Creates a sample dataset.
     *
     * @return Series 2.
     */
    private XYDataset createDataset2() {

        // create dataset 2...
        XYSeries series2 = new XYSeries("Series 3");

        series2.add(10.0, 16853.2);
        series2.add(20.0, 19642.3);
        series2.add(30.0, 18253.5);
        series2.add(40.0, 15352.3);
        series2.add(50.0, 13532.0);
        series2.add(100.0, 12635.3);
        series2.add(110.0, 13998.2);
        series2.add(120.0, 11943.2);
        series2.add(130.0, 16943.9);
        series2.add(140.0, 17843.2);
        series2.add(150.0, 16495.3);
        series2.add(160.0, 17943.6);
        series2.add(170.0, 18500.7);
        series2.add(180.0, 19595.9);

        return new XYSeriesCollection(series2);

    }

    /**
     * Creates a sample plot.
     * 
     * @return A sample plot.
     */
    private CombinedRangeXYPlot createPlot() {
        // create subplot 1...
        XYDataset data1 = createDataset1();
        XYItemRenderer renderer1 = new StandardXYItemRenderer();
        NumberAxis rangeAxis1 = new NumberAxis("Range 1");
        XYPlot subplot1 = new XYPlot(data1, null, rangeAxis1, renderer1);
        subplot1.setRangeAxisLocation(AxisLocation.BOTTOM_OR_LEFT);
         
        XYTextAnnotation annotation = new XYTextAnnotation("Hello!", 50.0, 10000.0);
        annotation.setFont(new Font("SansSerif", Font.PLAIN, 9));
        annotation.setRotationAngle(Math.PI / 4.0);
        subplot1.addAnnotation(annotation);
         
        // create subplot 2...
        XYDataset data2 = createDataset2();
        XYItemRenderer renderer2 = new StandardXYItemRenderer();
        NumberAxis rangeAxis2 = new NumberAxis("Range 2");
        rangeAxis2.setAutoRangeIncludesZero(false);
        XYPlot subplot2 = new XYPlot(data2, null, rangeAxis2, renderer2);
        subplot2.setRangeAxisLocation(AxisLocation.TOP_OR_LEFT); 

        // parent plot...
        CombinedRangeXYPlot plot = new CombinedRangeXYPlot(new NumberAxis("Range"));
        plot.setGap(10.0);
        
        // add the subplots...
        plot.add(subplot1, 1);
        plot.add(subplot2, 1);
        plot.setOrientation(PlotOrientation.VERTICAL);
        return plot;
    }
    
}